251391035

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 376012800

約数和(自身を除く): 124621765

約数列:

[1, 5, 7, 23, 35, 59, 67, 79, 115, 161, 295, 335, 395, 413, 469, 553, 805, 1357, 1541, 1817, 2065, 2345, 2765, 3953, 4661, 5293, 6785, 7705, 9085, 9499, 10787, 12719, 19765, 23305, 26465, 27671, 32627, 37051, 47495, 53935, 63595, 90919, 107203, 121739, 138355, 163135, 185255, 312287, 454595, 536015, 608695, 636433, 750421, 852173, 1561435, 2186009, 3182165, 3752105, 4260865, 7182601, 10930045, 35913005, 50278207, 251391035]

約数ペア:

[(1, 251391035), (5, 50278207), (7, 35913005), (23, 10930045), (35, 7182601), (59, 4260865), (67, 3752105), (79, 3182165), (115, 2186009), (161, 1561435), (295, 852173), (335, 750421), (395, 636433), (413, 608695), (469, 536015), (553, 454595), (805, 312287), (1357, 185255), (1541, 163135), (1817, 138355), (2065, 121739), (2345, 107203), (2765, 90919), (3953, 63595), (4661, 53935), (5293, 47495), (6785, 37051), (7705, 32627), (9085, 27671), (9499, 26465), (10787, 23305), (12719, 19765)]